Metal working – Method of mechanical manufacture – Electrical device making
Patent
1996-09-10
1998-10-13
Bray, W. Donald
Metal working
Method of mechanical manufacture
Electrical device making
29606, 29609, 242 4621, 336 92, 336210, H01F 2720, H01F 4102
Patent
active
058193979
ABSTRACT:
A method of assembling a three phase current transformer for printed circuit board installation. Three current transformers, each having a spin wound coil positioned about one leg of an unassembled continuous lamination core, are placed side-by-side in a transformer carrier such that two parallel core legs of the center transformer overlap the adjacent core legs of the two outside transformers and further such that printed circuit board terminal pins attached to the coils pass through stand-off sleeves formed from the transformer carrier. Rivets are placed through holes in the laminations of the overlapped core legs and in the transformer carrier thereby simultaneously riveting the three transformer cores and the transformer carrier together making a three phase transformer assembly.
REFERENCES:
patent: 4603314 (1986-07-01), Fukunaga et al.
patent: 4890086 (1989-12-01), Hill
patent: 5699977 (1997-12-01), Watanabe
Knight Michael W.
Lawrence Greg
Link Gregory
Tucker James T.
Bray W. Donald
Golden Larry I.
Shrout Larry T.
Square D Company
Stacey David R.
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